.start {
    margin: 0 auto;
    background-color: rgb(204, 204, 203);
    width: 250px;
    height: 50px;
    line-height: 50px;
    text-align: center;
}
.start a {
    text-decoration: none;
    color: yellow;
    width: 50px;
    height: 50px;
    font-size: 50px;
}
